CN109294074A - Dedicated high flowing high flame retardant PP composite material of a kind of online mould pressing process of roving glass fiber and preparation method thereof - Google Patents

Dedicated high flowing high flame retardant PP composite material of a kind of online mould pressing process of roving glass fiber and preparation method thereof Download PDF

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Publication number
CN109294074A
CN109294074A CN201811074087.1A CN201811074087A CN109294074A CN 109294074 A CN109294074 A CN 109294074A CN 201811074087 A CN201811074087 A CN 201811074087A CN 109294074 A CN109294074 A CN 109294074A
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flame retardant
retardant
polypropylene
glass fiber
pressing process
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CN201811074087.1A
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郑云龙
张涵
陈永东
蔡青
周文
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Shanghai Pret Composites Co Ltd
SAIC Volkswagen Automotive Co Ltd
Zhejiang Pret New Materials Co Ltd
Shanghai Pret Material Technology Co Ltd
Chongqing Pret New Materials Co Ltd
Shanghai Pret Chemical New Materials Co Ltd
Original Assignee
Shanghai Pret Composites Co Ltd
SAIC Volkswagen Automotive Co Ltd
Zhejiang Pret New Materials Co Ltd
Shanghai Pret Material Technology Co Ltd
Chongqing Pret New Materials Co Ltd
Shanghai Pret Chemical New Materials Co Ltd
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Priority to CN201811074087.1A priority Critical patent/CN109294074A/en
Publication of CN109294074A publication Critical patent/CN109294074A/en
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10Homopolymers or copolymers of propene
    • C08L23/14Copolymers of propene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K2003/2227Oxides; Hydroxides of metals of aluminium
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/38Boron-containing compounds
    • C08K2003/387Borates
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/014Additives containing two or more different additives of the same subgroup in C08K
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/02Flame or fire retardant/resistant
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/02Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

The invention discloses dedicated high flowing high flame retardant PP composite materials of the online mould pressing process of a kind of roving glass fiber and preparation method thereof, it is specifically made of the raw material of following parts by weight: 30~55 parts of the common co-polypropylene of high fluidity, 20~45 parts of high crystalline co-polypropylene of height flowing, 5~15 parts of organic hypophosphite fire retardant, Halogen phosphorus -5~15 parts of nitrogenated flame retardant, 3~10 parts of fire retarding synergist;Present invention has an advantage that being directed to urgent need of the current new-energy automobile to flame-retardant polypropylene composite material, using ternary flame retardant compounding, the technical solution of use in conjunction, successfully solves the low inherent shortcoming of polypropylene material flame retardant property;In addition, finger, the selection of high-flowability polypropylene base-material are melted using height, while realizing fire retardant fine dispersion, prepared flame-retardant polypropylene composite material has good processing fluidity, it is a kind of new-energy automobile special-purpose anti-flaming material for integrating excellent anti-flammability, good technique suitability with the online mould pressing process perfect matching of roving glass fiber needed for product molding.

Description

A kind of dedicated high flowing high flame retardant polypropylene composite materials of online mould pressing process of roving glass fiber Material and preparation method thereof
Technical field
The invention belongs to technical field of polymer materials, and in particular to a kind of dedicated high stream of online mould pressing process of roving glass fiber Dynamic high flame retardant PP composite material and preparation method thereof.
Background technique
Polypropylene is one of most commonly used material of application range in current polymer thermoplastic matrix material, has synthesis Mechanical property is good, the low (0.90~0.93g/cm of density3), resistance to electricity and chemical-resistance it is excellent, and melt-processed good fluidity adds The outstanding advantages such as work temperature low (180-200 DEG C) are commonly used in the fields such as automobile, consumer electronics, industrial electrical equipment, civilian product, The inside and outside decorations product of some types and functor especially in automobile.
However polypropylene material also has the inherent shortcoming of itself, that is, height is inflammable, self-extinguishment is poor, this and its own The hydrocarbon structure of saturation strand it is closely related, it is therefore, poly- in conventional thermoplastic, polymeric materials flame retardant property research Fire-retardant propylene is one of highest material system of development difficulty;Traditional Flame Retardant Agent of Polypropylene is mostly with halogen-antimony composite flame retardant system Based on, although halogen-antimony system fire retardant effect is good, dosage is often higher (25% or more), thus will lead to the mechanics of materials The serious reduction of energy and processing fluidity, the processing fluidity of especially material, which has, to be greatly lowered, so that its molding be made to add Work method is very restricted.
It is also higher and higher for the demand and performance requirement of fire proofing due to the gradually rise of new energy vehicle, not only want Ask it with preferable flame retardant property, and need to match a variety of moulding process such as extrusion molding, injection molding, blow molding, molding etc., roving glass fiber exists Line mould pressing process (Long glass Fiber Thermoplastics-Direct, hereinafter referred to as LFT-D) is exactly new in recent years The die press technology for forming of emerging a kind of high efficiency, low cost.Traditional anti-flaming polypropylene material is due in fire-retardant stability, processing Limitation in terms of mobility, and the property requirements of LFT-D technique can not be well adapted for, therefore, it is necessary to combine LFT-D work The operational characteristic of skill and specific processing flow, directionality develop its dedicated efficient stable flame-retardant polypropylene composite material.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of dedicated height of the online mould pressing process of roving glass fiber Flow high flame retardant PP composite material.
The purpose of the present invention is achieved through the following technical solutions:
A kind of dedicated high flowing high flame retardant PP composite material of online mould pressing process of roving glass fiber, it is characterised in that: Raw material including following parts by weight:
Further, the common co-polypropylene of the high fluidity, under 230 DEG C, the test condition of 2.16Kg, melting Index is 30~90g/10min, notch impact strength >=10kJ/m2
Further, the described high flowing high crystalline co-polypropylene melts under 230 DEG C, the test condition of 2.16Kg Melting index is 30~120g/10min, structure isotacticity >=90%, notch impact strength >=5kJ/m2
Further, organic hypophosphite fire retardant is mainly characterized by novel, efficient, high heat resistance organic One or more of hypo-aluminum orthophosphate combustion inhibitor or organic zinc hypophosphite fire retardant.
Further, Halogen phosphorus-nitrogenated flame retardant is the non-halogen system expansion of carbon source, acid source, gas source three-phase composite Type fire retardant.
Further, the fire retarding synergist is with magnesium hydroxide, aluminium hydroxide, the boron for assisting surface carbonation nitride layer It is one or more of in sour zinc, boric acid etc..
The second object of the present invention is that providing a kind of dedicated high flowing high flame retardant of online mould pressing process of roving glass fiber gathers The preparation method of acrylic composite, the method the following steps are included:
(1) the common co-polypropylene of high fluidity, high flowing high crystalline co-polypropylene are weighed by the weight percent, It is uniformly mixed, obtains mixed raw material A, weigh organic hypophosphite fire retardant, Halogen phosphorus-nitrogen system by the weight percent and hinder Agent, fire retarding synergist are fired, is uniformly mixed, obtains mixed raw material B.
(2) by after the distribution drying of above-mentioned mixed raw material A, B, mixed raw material A is placed in meshing co rotating twin screw extrusion It in main feeding bin, is added in the machine barrel of extruder through feed screw, mixed raw material B is added to extruder from side spout In, extruder screw diameter is 35mm, and draw ratio L/D is 40, and each zone temperature that main barrel is exported from feed opening to head is set Be set to: 60 DEG C, 180 DEG C, 200 DEG C, 210 DEG C, 220 DEG C, 220 DEG C, 220 DEG C, engine speed are 200 revs/min, are squeezed through melting Out, high flowing high flame retardant PP composite material is made in cooling, granulation, drying and processing.
Compared with prior art, the invention has the following beneficial effects:
(1) aiming at the problem that traditional anti-flaming polypropylene material intrinsic " high dosage, flame retardant effect are unstable ", using having Machine hypophosphites+organic phosphorus-nitrogen compound flame-retardant system is aided with the fire retarding synergist of specific aim selection, carbide surface is covered The flame retardant effect of cap rock is brought into play well, meanwhile, high temperature resistant when also solving the exclusive use of organic phosphorus-nitrogen compound is steady Qualitative question.
(2) it is used in compounding by the polypropylene matrix of different structure, different melting means, different anti-impact characteristics, in addition low dosage, The processing fluidity of efficient flame-retardant system, modified polypropylene composite material obtained is obviously improved, and material foundation melting means has It is obviously improved, it can be preferably applied in the online mould pressing process of LFT-D.
(3) the high flowing high flame retardant PP composite material being prepared according to the technical solution of the present invention, in low use (1.03-1.08g/cm under the premise of amount, low-density3), the more conventional anti-flaming polypropylene material of flame retardant rating more goes a step further, Up to UL94V-0 (0.8mm), the conventional mechanical property index of material such as tensile strength, impact strength and notch impact strength It makes moderate progress, simultaneously as the flame-retardant system of reasonably combined and efficient, the low dosage of PP base-material, the processing fluidity ginseng of material Number is significantly promoted, and can preferably match the technique requirement of LFT-D, is a kind of lightweight resistance with conspicuous characteristics, efficient, low-density Fire polypropylene technology scheme.
Specific embodiment
Below by specific embodiment, the present invention is described further, and the embodiment is merely to illustrate this hair It is bright rather than limiting the invention.
The embodiment of the present invention is raw materials used:
PP-1: the common co-polypropylene of high fluidity, Zhenghai refinery, melt index MFR be 30g/10min (230 DEG C, 2.16Kg), notch impact strength 12.7kJ/m2
PP-2: height flowing high crystalline co-polypropylene, Yangtze petrochemical industry, melt index MFR be 60g/10min (230 DEG C, 2.16Kg), notch impact strength 6.9kJ/m2
PP-3: height flowing high crystalline co-polypropylene, South Korea SK, melt index MFR be 128g/10min (230 DEG C, 2.16Kg), notch impact strength 48kJ/m2
PP-4: height flowing high crystalline co-polypropylene, South Korea Ba Saier, melt index MFR be 90g/10min (230 DEG C, 2.16Kg), notch impact strength 54kJ/m2
Organic hypophosphite fire retardant: OP-935, Switzerland's Klein, available phosphorus content: 23-24%.
Organic hypophosphite fire retardant: FR-ADP 01, third of the twelve Earthly Branches source new material, available phosphorus content: 23-25%.
Organic hypophosphite fire retardant: ZX-ZDP950, Tianjin development chemical industry, available phosphorus content: 21-24%.
Halogen phosphorus-nitrogenated flame retardant: PP-FR 8310, phosphorus-nitrogen compound system, available phosphorus content (13-17%), available nitrogen Content (18-22%), the gloomy chemical industry of the Zhejiang rising sun.
Fire retarding synergist: modified aluminium hydroxide, golden dagger-axe new material.
Fire retarding synergist: zinc borate, Shandong Thailand star chemical industry.
Properties of product test:
Density measurement: ISO1183-1 standard testing is pressed;
Melt flow rate (MFR) test;By ISO1133-1 standard testing, test condition is 230 DEG C, 2.16Kg.
The test of melt helical length: it is carried out on shake moral EM320-SVP/3 small injecting machine, using the dedicated survey of helix Test die is molded, is tested, and injection temperature is 180-200 DEG C.
Tensile property: it is carried out by ISO527-2 standard, test rate 50mm/min.
Bending property: it is carried out by IS178 standard, span 64mm, test rate 2mm/min.
Impact and notched impact properties: being carried out on impact tester for simple supported beam by ISO179-1 standard, and batten notch is A Type is tested under room temperature (23 DEG C), low temperature (- 30 DEG C) respectively.
Flame retardant property: by the standard method of test of UL94 vertical combustion, in MICHAEL DRAKE DRK-310 horizontal vertical combustion testing It is tested in instrument, test bars thickness is respectively 1.6mm and 0.8mm.
Embodiment 1
The common co-polypropylene of high fluidity, high flowing high crystalline copolymerization third are weighed by 1 data of embodiment shown in table 1 Alkene is uniformly mixed, obtains mixed raw material A;It is fire-retardant that organic hypophosphite fire retardant, Halogen phosphorus-nitrogen system are weighed by 1 data of embodiment Agent, fire retarding synergist are uniformly mixed, and wait until mixed raw material B.
It is tightly engaged at 1 and prepares the high flowing high flame retardant polypropylene composite materials material in parallel dual-screw extruding machine Material;Detailed process is as follows: mixed raw material A is placed in the main feeding bin of meshing co rotating twin screw extrusion, through feed screw plus Entering into the machine barrel of extruder, mixed raw material B is added in extruder from side spout, extruder screw diameter is 35mm, Draw ratio L/D is 40, each zone temperature setting that main barrel is exported from feed opening to head are as follows: 60 DEG C, 180 DEG C, 200 DEG C, 210 DEG C, 220 DEG C, 220 DEG C, 220 DEG C, engine speed be 200 revs/min, through processes such as melting extrusion, cooling, granulation, drying and processings After obtain product.
Embodiment 2
The common co-polypropylene of high fluidity, high flowing high crystalline copolymerization third are weighed by 2 data of embodiment shown in table 1 Alkene is uniformly mixed, obtains mixed raw material A;It is fire-retardant that organic hypophosphite fire retardant, Halogen phosphorus-nitrogen system are weighed by 2 data of embodiment Agent, fire retarding synergist are uniformly mixed, and wait until mixed raw material B.
It is tightly engaged at 1 and prepares the high flowing high flame retardant polypropylene composite materials material in parallel dual-screw extruding machine Material;Detailed process is as follows: mixed raw material A is placed in the main feeding bin of meshing co rotating twin screw extrusion, through feed screw plus Entering into the machine barrel of extruder, mixed raw material B is added in extruder from side spout, extruder screw diameter is 35mm, Draw ratio L/D is 40, each zone temperature setting that main barrel is exported from feed opening to head are as follows: 60 DEG C, 180 DEG C, 200 DEG C, 210 DEG C, 220 DEG C, 220 DEG C, 220 DEG C, engine speed be 200 revs/min, through processes such as melting extrusion, cooling, granulation, drying and processings After obtain product.
Embodiment 3
The common co-polypropylene of high fluidity, high flowing high crystalline copolymerization third are weighed by 3 data of embodiment shown in table 1 Alkene is uniformly mixed, obtains mixed raw material A;It is fire-retardant that organic hypophosphite fire retardant, Halogen phosphorus-nitrogen system are weighed by 3 data of embodiment Agent, fire retarding synergist are uniformly mixed, and wait until mixed raw material B.
It is tightly engaged at 1 and prepares the high flowing high flame retardant polypropylene composite materials material in parallel dual-screw extruding machine Material;Detailed process is as follows: mixed raw material A is placed in the main feeding bin of meshing co rotating twin screw extrusion, through feed screw plus Entering into the machine barrel of extruder, mixed raw material B is added in extruder from side spout, extruder screw diameter is 35mm, Draw ratio L/D is 40, each zone temperature setting that main barrel is exported from feed opening to head are as follows: 60 DEG C, 180 DEG C, 200 DEG C, 210 DEG C, 220 DEG C, 220 DEG C, 220 DEG C, engine speed be 200 revs/min, through processes such as melting extrusion, cooling, granulation, drying and processings After obtain product.
Embodiment 4
The common co-polypropylene of high fluidity, high flowing high crystalline copolymerization third are weighed by 5 data of embodiment shown in table 1 Alkene is uniformly mixed, obtains mixed raw material A;It is fire-retardant that organic hypophosphite fire retardant, Halogen phosphorus-nitrogen system are weighed by 4 data of embodiment Agent, fire retarding synergist are uniformly mixed, and wait until mixed raw material B.
It is tightly engaged at 1 and prepares the high flowing high flame retardant polypropylene composite materials material in parallel dual-screw extruding machine Material;Detailed process is as follows: mixed raw material A is placed in the main feeding bin of meshing co rotating twin screw extrusion, through feed screw plus Entering into the machine barrel of extruder, mixed raw material B is added in extruder from side spout, extruder screw diameter is 35mm, Draw ratio L/D is 40, each zone temperature setting that main barrel is exported from feed opening to head are as follows: 60 DEG C, 180 DEG C, 200 DEG C, 210 DEG C, 220 DEG C, 220 DEG C, 220 DEG C, engine speed be 200 revs/min, through processes such as melting extrusion, cooling, granulation, drying and processings After obtain product.
Embodiment 5
The common co-polypropylene of high fluidity, high flowing high crystalline copolymerization third are weighed by 5 data of embodiment shown in table 1 Alkene is uniformly mixed, obtains mixed raw material A;It is fire-retardant that organic hypophosphite fire retardant, Halogen phosphorus-nitrogen system are weighed by 5 data of embodiment Agent, fire retarding synergist are uniformly mixed, and wait until mixed raw material B.
It is tightly engaged at 1 and prepares the high flowing high flame retardant polypropylene composite materials material in parallel dual-screw extruding machine Material;Detailed process is as follows: mixed raw material A is placed in the main feeding bin of meshing co rotating twin screw extrusion, through feed screw plus Entering into the machine barrel of extruder, mixed raw material B is added in extruder from side spout, extruder screw diameter is 35mm, Draw ratio L/D is 40, each zone temperature setting that main barrel is exported from feed opening to head are as follows: 60 DEG C, 180 DEG C, 200 DEG C, 210 DEG C, 220 DEG C, 220 DEG C, 220 DEG C, engine speed be 200 revs/min, through processes such as melting extrusion, cooling, granulation, drying and processings After obtain product.
Embodiment 6
The common co-polypropylene of high fluidity, high flowing high crystalline copolymerization third are weighed by 6 data of embodiment shown in table 1 Alkene is uniformly mixed, obtains mixed raw material A;It is fire-retardant that organic hypophosphite fire retardant, Halogen phosphorus-nitrogen system are weighed by 6 data of embodiment Agent, fire retarding synergist are uniformly mixed, and wait until mixed raw material B.
It is tightly engaged at 1 and prepares the high flowing high flame retardant polypropylene composite materials material in parallel dual-screw extruding machine Material;Detailed process is as follows: mixed raw material A is placed in the main feeding bin of meshing co rotating twin screw extrusion, through feed screw plus Entering into the machine barrel of extruder, mixed raw material B is added in extruder from side spout, extruder screw diameter is 35mm, Draw ratio L/D is 40, each zone temperature setting that main barrel is exported from feed opening to head are as follows: 60 DEG C, 180 DEG C, 200 DEG C, 210 DEG C, 220 DEG C, 220 DEG C, 220 DEG C, engine speed be 200 revs/min, through processes such as melting extrusion, cooling, granulation, drying and processings After obtain product.
The dedicated high flowing high flame retardant PP composite material of the online mould pressing process of 1 roving glass fiber of table formula table (unit: Gram)
Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4 Embodiment 5 Embodiment 6
PP-1 30 30 30 30 30 30
PP-2 52 47
PP-3 40 47
PP-4 43 35
OP-935 5 15 12 10 12 10
FR-ADP 01 10 5 10 15
PP-FR 8310 10 5
Modified aluminium hydroxide 3 5 10
Zinc borate 10 3 6
Comparative example 1
Fire-retardant PP trade mark POLIFOR-6000/V0-AF-EP, Italian So.F.TER company are commercially available.
Table 2: the dedicated high flowing high flame retardant Properties of Polypropylene Composite test result of the online mould pressing process of roving glass fiber
From the point of view of the material properties test data of embodiment 1-6 each in table 2, the processing fluidity of each embodiment is held in Higher level, material melt finger and helical length is significantly better than that the commercially available fire-retardant PP trade mark (comparative example 1), this is for true The important prerequisite that the online mould pressing process of subsequent LFT-D runs well is protected, this mainly has benefited from this patent about PP substrate Distribute rationally.
Each material characteristic data of further comparative example 1-6 is it is found that select reasonable fire retardant systems not only can be true Protecting material has good flame retardant rating, and can reduce the usage amount of fire retardant to the maximum extent, reduces the self weight density of material, To play certain lightweight weight loss effect.Although embodiment 2 and embodiment 6 have preferable flame retardant rating (V-0, 0.8mm), but fire retardant total amount is big, leads to density (1.13-1.15g/cm3) it is apparently higher than other embodiments;And if reducing fire-retardant Dosage, then flame retardant rating can decrease (embodiment 1, embodiment 5) again, this is very for subsequent finished parts combustion testing Unfavorable factor;Because usually seeing, embodiment 4 has the various aspects such as processing fluidity, flame retardant property and the self weight density of compound material There is optimal performance, in the lower (1.06g/cm of density3) under the premise of, pass through the compounded combination and optimization dosage of fire retardant Selection, realizes highest flame retardant rating (V-0,0.8mm), and preferably melt finger and helical length, shows the embodiment With optimal application effect, and it is also that there is good processing and forming to show in actual LFT-D mould pressing process, is a kind of high The light-weighted PP composite material of processing fluidity, high flame-retardant property, low-density, various performance characteristics are especially suitable for working as The LFT-D technique of the large-scale planarization product of such as battery mould the cover, air-conditioner housing, bottom guard plate in preceding automobile structure, with Newly can vehicle industrialization process continuous acceleration, the application range of material and field will also further be expanded, deeply.

Claims (9)

1. a kind of dedicated high flowing high flame retardant PP composite material of online mould pressing process of roving glass fiber, it is characterised in that: packet Include the raw material of following parts by weight:
2. a kind of dedicated high flowing high flame retardant polypropylene composite materials of the online mould pressing process of roving glass fiber according to claim 1 Material, it is characterised in that: the common co-polypropylene of the high fluidity, under 230 DEG C, the test condition of 2.16Kg, melting Index is 30~90g/10min, notch impact strength >=10kJ/m2
3. a kind of dedicated high flowing high flame retardant polypropylene composite materials of the online mould pressing process of roving glass fiber according to claim 1 Material, it is characterised in that: the described high flowing high crystalline co-polypropylene is under 230 DEG C, the test condition of 2.16Kg, melting Index is 30~120g/10min, structure isotacticity >=90%, notch impact strength >=5kJ/m2
4. a kind of dedicated high flowing high flame retardant polypropylene composite materials of the online mould pressing process of roving glass fiber according to claim 1 Material, it is characterised in that: organic hypophosphite fire retardant is that novel, efficient, high heat resistance organic hypo-aluminum orthophosphate is fire-retardant One or more of agent or organic zinc hypophosphite fire retardant.
5. a kind of dedicated high flowing high flame retardant polypropylene composite materials of the online mould pressing process of roving glass fiber according to claim 4 Material, it is characterised in that: organic hypophosphite fire retardant is selected from organic hypophosphite fire retardant OP-935, FR-ADP 01, one or more of ZX-ZDP950.
6. a kind of dedicated high flowing high flame retardant polypropylene composite materials of the online mould pressing process of roving glass fiber according to claim 1 Material, it is characterised in that: the Halogen phosphorus-nitrogenated flame retardant is the non-halogen system intumescent of carbon source, acid source, gas source three-phase composite Fire retardant.
7. a kind of dedicated high flowing high flame retardant polypropylene composite materials of the online mould pressing process of roving glass fiber according to claim 6 Material, it is characterised in that: in the Halogen phosphorus-nitrogenated flame retardant, available phosphorus content 13-17%, effective nitrogen content is 18- 22%.
8. a kind of dedicated high flowing high flame retardant polypropylene composite materials of the online mould pressing process of roving glass fiber according to claim 1 Material, it is characterised in that: the fire retarding synergist is with magnesium hydroxide, aluminium hydroxide, the boron for assisting surface carbonation nitride layer It is one or more of in sour zinc, boric acid.
9. according to claim 1-8 it is one of any described in height flowing high flame retardant PP composite material preparation method, spy Sign is: the following steps are included:
(1) the common co-polypropylene of high fluidity, high flowing high crystalline co-polypropylene, mixing are weighed by the weight percent Uniformly, mixed raw material A is obtained;It is fire-retardant that organic hypophosphite fire retardant, Halogen phosphorus-nitrogen system are weighed by the weight percent Agent, fire retarding synergist are uniformly mixed, obtain mixed raw material B;
(2) by after the distribution drying of above-mentioned mixed raw material A, B, the mixed raw material A master for being placed in meshing co rotating twin screw extrusion is fed It in feed bin, is added in the machine barrel of extruder through feed screw, mixed raw material B is added in extruder from side spout, squeezed Machine screw diameter is 35mm out, and draw ratio L/D is 40, each zone temperature setting that main barrel is exported from feed opening to head are as follows: 60 DEG C, 180 DEG C, 200 DEG C, 210 DEG C, 220 DEG C, 220 DEG C, 220 DEG C, engine speed is 200 revs/min, through melting extrusion, cold But, it is granulated, drying and processing, high flowing high flame retardant PP composite material is made.
CN201811074087.1A 2018-09-14 2018-09-14 Dedicated high flowing high flame retardant PP composite material of a kind of online mould pressing process of roving glass fiber and preparation method thereof Pending CN109294074A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116082750A (en) * 2023-01-31 2023-05-09 宁波福瑞科新材料有限公司 Flame-retardant polypropylene resin, flame-retardant plate and processing method thereof

Citations (2)

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CN107141591A (en) * 2017-06-08 2017-09-08 北京化工大学 A kind of few additive halogen-free anti-flaming polypropylene material and preparation method thereof
CN107828084A (en) * 2016-09-15 2018-03-23 科莱恩塑料和涂料有限公司 Fire retardant combination of stabilizers for thermoplastic polymer

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Publication number Priority date Publication date Assignee Title
CN107828084A (en) * 2016-09-15 2018-03-23 科莱恩塑料和涂料有限公司 Fire retardant combination of stabilizers for thermoplastic polymer
CN107141591A (en) * 2017-06-08 2017-09-08 北京化工大学 A kind of few additive halogen-free anti-flaming polypropylene material and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116082750A (en) * 2023-01-31 2023-05-09 宁波福瑞科新材料有限公司 Flame-retardant polypropylene resin, flame-retardant plate and processing method thereof

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Application publication date: 20190201